CN2426206Y - Vacuum load isolation switch - Google Patents
Vacuum load isolation switch Download PDFInfo
- Publication number
- CN2426206Y CN2426206Y CN 00204660 CN00204660U CN2426206Y CN 2426206 Y CN2426206 Y CN 2426206Y CN 00204660 CN00204660 CN 00204660 CN 00204660 U CN00204660 U CN 00204660U CN 2426206 Y CN2426206 Y CN 2426206Y
- Authority
- CN
- China
- Prior art keywords
- isolation
- control device
- extinguishing chamber
- utility
- arc control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to a vacuum load isolation switch, which is characterized in that the utility model is composed of a isolation movable contact and a isolation static contact, a vacuum arc-extinguishing chamber, a isolation sleeve outside the arc-extinguishing chamber, an operating mechanism for the vacuum arc-extinguishing chamber and three-phase linkage main mechanism, wherein, the vacuum arc-extinguishing chamber is installed on movable arms of the isolation contacts. In the process of the rotation of each phase movable arm, a spring can automatically stretch for storing energy. When the spring passes through a middle point, the spring can release the energy for driving the movable contact of the vacuum arc-extinguishing chamber to open and the close. The utility model ensures that the arc-extinguishing chamber is broken before the break of an isolation incision; the vacuum arc-extinguish chamber is switched on after the isolation incision is switched on.
Description
High pressure (3.5-72.5KV) vacuum-load isolating switch and the operating mechanism thereof of relating to of the present utility model, particularly a kind of vacuum-load isolating switch.
At present, known isolation on-load switch has air-generating (or air pressing type) and vacuum type two big classes.Preceding a kind of dependence gas exhausted material decomposites gas-blast and comes extinguish arcs under arcing.Because of completely different with the vacuum extinction mode, no longer here stating more.Adopt the method for vacuum interrupter that following two kinds of control modes are generally arranged: (1), three-phase arc control device are separately fixed on the insulating support, and during separating brake, operating mechanism is actuating arc control device separating brake at first, then actuating isolating switch separating brake again; The isolating switch that at first closes during combined floodgate, vacuum interrupter more then closes.The method mechanism complexity, volume is big, complex operation, cost height; (2), the three-phase arc control device vertically are placed in respectively by the fixed contact of isolating switch, when isolating switch moving knife arm rotates, at first stir the arc control device operating mechanism and make its operation arc control device action.Because of arc control device are not to be placed on the moving knife arm of isolating switch, when rotating, can not stir on the moving knife arm arc control device operating mechanism action reliably, and cause isolating switch and the arc control device can not be effectively chain, lead to a disaster.
The purpose of this utility model is to overcome above-mentioned defective and a kind of novel evacuated load-break switch is provided.
The purpose of this utility model is that a kind of novel evacuated load realized is like this isolated and closed, and it is characterized in that: be by isolating dynamic and static contact, vacuum interrupter, arc control device external insulation sleeve, vacuum interrupter operating mechanism and three head office that links forms; Wherein vacuum interrupter is installed on the swing arm of insulating contact.Described arc control device operating mechanism respectively mutually independently, does not have shared main shaft, moment of inertia is little, quickens fast.
During use, in the closing of isolating switch, separating brake process, make the spring energy-storage in the arc control device operating mechanism automatically, and discharge in due course, the action of operation arc control device moving contact.The utility model is the application of mechanical transmissioning technology in the high voltage technique field.
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is the end view of the utility model on-load switch.
Fig. 2 (a-f) is the utility model on-load switch course of action schematic diagram.
Fig. 2 (a) is the utility model combined floodgate back position view.
Fig. 2 (b) presorts the gate position schematic diagram for the utility model arc control device.
Fig. 2 (c) is the utility model arc control device separating brake position view.
Fig. 2 (d) is a position view behind the utility model separating brake.
Fig. 2 (e) is the pre-closing position schematic diagrames of the utility model arc control device.
Fig. 2 (f) is the utility model arc control device closing position schematic diagram.
Fig. 3 is the utility model vertical view.
1-static contact isolation switch among the figure, 2-isolating switch moving contact (swing arm), 3-vacuum interrupter, 31-arc control device insulating case, the 4-connecting lever, 5-hangs the spring connecting lever, the 6-main shaft, 7-shift fork, 8-countershaft, the extension spring of 9-operating mechanism, 10-insulation operation pull bar, 11-three-phase universal driving shaft, 12-supporting insulator, the 13-connecting rod, 14-combined operation head office.
Referring to Fig. 1-Fig. 3, motor is by the output shaft connecting lever (combined operation head office) and connecting rod (13) pulling three-phase universal driving shaft (11) rotation of decelerator; Insulation operation pull bar (10) pulling isolating switch moving contact (swing arm) (2) is that rotate at the center with the main shaft on the arc control device operating mechanism, reaches the load-break switch branch, closes the purpose of action.
Detailed process is as follows:
1, separating brake process: switch when complete closing position, arc control device axis and isolate the swing arm center line and becomes α angle (installation of supposition forward brace type, but also reversely hung Yong installation) with the bottom surface.When swing arm (2) rotates to when becoming position, β angle with the bottom surface, the hanging spring shaft center on two connecting levers of pulling extension spring and the alignment of shafts point-blank rotate slightly again, and extension spring promptly can spur connecting lever automatically and rotate, operation arc control device separating brake, and at this moment isolating switch does not separate as yet.When swing arm (2) rotates to when becoming the γ angle with horizontal line, isolation fracture reaches safe distance, i.e. separating brake position fully.
2, making process: switch is when complete separating brake position, and swing arm becomes the γ angle with the bottom surface.When swing arm is rotated counterclockwise the φ angle, the isolating switch on, on same straight line, rotation slightly again, extension spring spur connecting lever operation arc control device automatically and close a floodgate again for main core and two connecting lever hanging spring shaft hearts.Arc control device are placed on the swing arm, and idle rod rotates together, guarantee separately to separate isolating switch behind the arc control device earlier in the separating brake process.Close earlier during combined floodgate to close behind the isolating switch and close arc control device, realize safety interlocking.
Claims (2)
1, a kind of novel evacuated load-break switch is characterized in that: be by isolating dynamic and static contact, vacuum interrupter, arc control device external insulation sleeve, vacuum interrupter operating mechanism and three head office that links forms; Wherein vacuum interrupter is installed on the swing arm of insulating contact.
2, a kind of novel evacuated load-break switch according to claim 1, it is characterized in that: the three-phase arc control device are furnished with independent operating mechanism separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00204660 CN2426206Y (en) | 2000-03-01 | 2000-03-01 | Vacuum load isolation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00204660 CN2426206Y (en) | 2000-03-01 | 2000-03-01 | Vacuum load isolation switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2426206Y true CN2426206Y (en) | 2001-04-04 |
Family
ID=33572976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00204660 Expired - Fee Related CN2426206Y (en) | 2000-03-01 | 2000-03-01 | Vacuum load isolation switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2426206Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108807064A (en) * | 2018-08-09 | 2018-11-13 | 贵州电网有限责任公司 | Easy care split formula high voltage isolator |
-
2000
- 2000-03-01 CN CN 00204660 patent/CN2426206Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108807064A (en) * | 2018-08-09 | 2018-11-13 | 贵州电网有限责任公司 | Easy care split formula high voltage isolator |
| CN108807064B (en) * | 2018-08-09 | 2024-01-30 | 贵州电网有限责任公司 | Easy maintenance split type high-voltage isolating switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |